Recycling system suitable for photovoltaic panels on construction site

Abstract

The utility model discloses a photovoltaic panel resource utilization system suitable for a construction site, which comprises an outer frame disassembling machine, a second conveyor is fixedly arranged at the discharge end of the outer frame disassembling machine, and a power supply box disassembling machine is fixedly connected to one end, far away from the outer frame disassembling machine, of the second conveyor. According to the utilization system suitable for photovoltaic panel recycling on the construction site, waste gas is guided into the filter box through the gas guide pipe, and the waste gas can be filtered through matched arrangement of the first filter screen, the second filter screen and the activated carbon adsorption screen, so that the utilization rate of the photovoltaic panel recycling is improved, and the utilization rate of the photovoltaic panel recycling is improved. According to the invention, waste gas is introduced into the preheating box, solid particles in the waste gas are filtered out, then the filtered waste gas is introduced into a plurality of heat exchange pipes, and heat exchange treatment is carried out on air in the preheating box, so that the temperature in the preheating box is increased, preheating treatment can be carried out on the photovoltaic panel, the calcination efficiency is improved, waste heat of the waste gas can be recycled, and heat waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic panel recycling, in particular to a photovoltaic panel resource utilization system suitable for construction sites. Background Art

[0002] The life of photovoltaic panels is about 25 years, and a large-scale recycling wave of photovoltaic panels is coming. According to relevant environmental protection policies, photovoltaic panels need to be harmlessly treated and recycled. The most valuable recycling value in photovoltaic panels is the battery cell. However, if you want to keep the complete structure of the battery cell, you need to peel off the outer frame, power box, packaging glass, EVA film, backplane, etc. of the photovoltaic panel. After all peeling, you can get the silicon of the battery cell. After all peeling, the surface of the battery cell is covered with metals such as Al and Ag. The recycled battery cell also needs to extract the metal covering its surface.

[0003] The existing China Patent Network discloses a system and method for resource utilization of photovoltaic panels with patent number CN202310476472.3, including: photovoltaic panel outer frame and power box disassembly equipment, the photovoltaic panel outer frame and power box disassembly structure is used to disassemble the photovoltaic panel outer frame and power box; calcined parts, the calcined parts are used to calcine the photovoltaic panel after disassembling the outer frame and power box so that the EVA film on the photovoltaic panel can be cracked and peeled off to obtain battery cells; battery cell metal extraction equipment, the battery cell metal extraction equipment is used to extract the metal covering the surface of the photovoltaic battery cell; in this way, not only can the outer frame, power box, packaging glass, EVA film, backboard, etc. of the photovoltaic panel be completely peeled off and removed, but also in the extraction process, the extracting liquid reacts completely with the metal covering the surface of the battery cell with high reaction efficiency, and the disassembly does not damage the battery cell and the main structure of the battery silicon wafer, and the resource recycling of photovoltaics is efficiently realized, the recycling rate of photovoltaic resources is improved, and it is environmentally friendly.

[0004] It is not convenient to recover the waste heat of the exhaust gas during the calcination process of the above-mentioned photovoltaic panels, which causes heat loss and waste of resources. Utility Model Content

[0005] The purpose of the utility model is to provide a photovoltaic panel resource utilization system suitable for construction sites to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a system for utilizing photovoltaic panels as resources at construction sites, comprising an outer frame dismantling machine, a second conveyor is fixedly provided at the discharge end of the outer frame dismantling machine, an end of the second conveyor away from the outer frame dismantling machine is fixedly connected to a power box dismantling machine, a third conveyor is fixedly provided at the discharge end of the power box dismantling machine, a calcining furnace is provided at the end of the third conveyor away from the power box dismantling machine, a preheating box is fixedly provided at the connection between the third conveyor and the calcining furnace, a plurality of evenly distributed heat exchange tubes are fixedly installed on the top of the inner side of the preheating box, a plurality of heat exchange tubes are fixedly connected at both ends with a shunt pipe and a collecting pipe respectively, a purification box is fixedly provided on one side of the preheating box, a purification component is provided on the top of the inner side of the purification box, a conduit is fixedly connected to one side of the shunt pipe, and an end of the conduit extends to the outside world away from the shunt pipe and is fixedly connected to a filter box.

[0007] The exhaust gas is introduced into the filter box through the air guide pipe, and the exhaust gas can be filtered through the coordinated arrangement of the first filter screen, the second filter screen and the activated carbon adsorption screen, and then the solid particles in the exhaust gas are filtered out, and then the filtered exhaust gas is introduced into a plurality of heat exchange pipes, and then the air in the preheating box is heat exchanged, thereby increasing the temperature in the preheating box, and can preheat the photovoltaic panel to improve the calcination efficiency, and can also realize the recovery of the waste heat of the exhaust gas to avoid heat waste, and then the exhaust gas after heat exchange is introduced into the purification box through the exhaust pipe, and at the same time, the purification liquid is introduced into the first annular pipe, the second annular pipe and a plurality of branch pipes, and the purification liquid is sprayed out in the form of spray through a plurality of spray heads, thereby realizing the purification of the exhaust gas and avoiding the direct discharge of the exhaust gas to pollute the environment.

[0008] Preferably, an annular seat is slidably provided at the bottom of the inner side of the filter box, and the inside of the annular seat is fixedly provided with a first filter screen, a second filter screen and an activated carbon adsorption screen in sequence from top to bottom. The exhaust gas can be filtered and treated through the coordinated arrangement of the first filter screen, the second filter screen and the activated carbon adsorption screen, and then the solid particles in the exhaust gas can be filtered out.

[0009] Preferably, a sealing cover is threadedly provided at the bottom end of the filter box, and two limiting rods are fixedly provided on the inner side of the sealing cover. The two limiting rods are arranged corresponding to the annular seat. The setting of the two limiting rods can limit the annular seat, thereby ensuring the stable operation of the filter assembly.

[0010] Preferably, one side of the manifold is fixedly connected to an exhaust pipe, and one end of the exhaust pipe, which is away from the manifold, extends to the interior of the purification box and is fixedly provided with a one-way valve, so that the exhaust gas after heat exchange is introduced into the purification box through the exhaust pipe.

[0011] Preferably, the purification component includes a first annular tube and a second annular tube, a plurality of branch tubes are fixedly connected between the first annular tube and the second annular tube, and the bottom ends of the first annular tube, the second annular tube and the plurality of branch tubes are fixedly connected with spray heads. Through the arrangement of the first annular tube, the second annular tube and the plurality of branch tubes, the purification liquid can be sprayed in all directions in the purification box.

[0012] Preferably, an exhaust port is provided at the top of the calcining furnace, an air guide pipe is fixedly connected to the middle of the exhaust port, an end of the air guide pipe away from the exhaust port is connected to the top of the filter box, and the exhaust gas is introduced into the filter box through the air guide pipe.

[0013] Preferably, a first conveyor is provided at the feeding end of the outer frame disassembling machine, and the photovoltaic panels to be disassembled are conveyed into the outer frame disassembling machine by the first conveyor.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The exhaust gas is introduced into the filter box through the air guide pipe, and the exhaust gas can be filtered through the coordinated arrangement of the first filter screen, the second filter screen and the activated carbon adsorption screen, and then the solid particles in the exhaust gas are filtered out, and then the filtered exhaust gas is introduced into a plurality of heat exchange pipes, and then the air in the preheating box is heat exchanged, thereby increasing the temperature in the preheating box, and can preheat the photovoltaic panel to improve the calcination efficiency, and can also realize the recovery of the waste heat of the exhaust gas to avoid heat waste, and then the exhaust gas after heat exchange is introduced into the purification box through the exhaust pipe, and at the same time, the purification liquid is introduced into the first annular pipe, the second annular pipe and a plurality of branch pipes, and the purification liquid is sprayed out in the form of spray through a plurality of spray heads, thereby realizing the purification of the exhaust gas and avoiding the direct discharge of the exhaust gas to pollute the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the preheating box of the utility model;

[0018] Figure 3 It is an enlarged view of part A of the utility model;

[0019] Figure 4 It is a structural diagram of the purification component of the utility model.

[0020] In the figure: 1. outer frame disassembly machine; 2. first conveyor; 3. second conveyor; 4. power box disassembly machine; 5. third conveyor; 6. calcining furnace; 7. exhaust port; 8. air duct; 9. preheating box; 10. filter box; 11. conduit; 12. heat exchange tube; 13. diverter pipe; 14. collecting pipe; 15. exhaust pipe; 16. purification box; 17. one-way valve; 18. purification assembly; 181. first annular pipe; 182. second annular pipe; 183. branch pipe; 184. spray head; 19. annular seat; 20. first filter screen; 21. second filter screen; 22. activated carbon adsorption net; 23. sealing cover; 24. limit rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] See also Figure 1-4 The utility model provides a utilization system for photovoltaic panels on construction sites, including an outer frame dismantling machine 1, a second conveyor 3 is fixedly provided at the discharging end of the outer frame dismantling machine 1, and a power box dismantling machine 4 is fixedly connected to the end of the second conveyor 3 away from the outer frame dismantling machine 1, a third conveyor 5 is fixedly provided at the discharging end of the power box dismantling machine 4, a calcining furnace 6 is provided at the end of the third conveyor 5 away from the power box dismantling machine 4, and a preheating box 9 is fixedly provided at the connection between the third conveyor 5 and the calcining furnace 6, a plurality of evenly distributed heat exchange tubes 12 are fixedly installed on the top of the inner side of the preheating box 9, and a shunt pipe 13 and a collecting pipe 14 are fixedly connected at both ends between the plurality of heat exchange tubes 12, a purification box 16 is fixedly provided on one side of the preheating box 9, a purification assembly 18 is provided on the top of the inner side of the purification box 16, a conduit 11 is fixedly connected to one side of the shunt pipe 13, and the end of the conduit 11 away from the shunt pipe 13 extends to the outside A filter box 10 is fixedly connected, and the exhaust gas is introduced into the filter box 10 through the air guide pipe 8, and the exhaust gas can be filtered through the cooperation of the first filter screen 20, the second filter screen 21 and the activated carbon adsorption net 22, and then the solid particles in the exhaust gas are filtered out, and then the filtered exhaust gas is introduced into a plurality of heat exchange pipes 12, and then the air in the preheating box 9 is heat exchanged, thereby increasing the temperature in the preheating box 9, and can preheat the photovoltaic panel to improve the calcination efficiency, and can also realize the recovery of the waste heat of the exhaust gas to avoid heat waste, and then the exhaust gas after heat exchange is introduced into the purification box 16 through the exhaust pipe 15, and at the same time, the purification liquid is introduced into the first annular pipe 181, the second annular pipe 182 and a plurality of branch pipes 183, and the purification liquid is sprayed out in the form of spray through a plurality of spray heads 184, thereby realizing the purification of the exhaust gas and avoiding the direct discharge of the exhaust gas to pollute the environment.

[0023] When in use, an annular seat 19 is slidably provided at the bottom of the inner side of the filter box 10, and a first filter screen 20, a second filter screen 21 and an activated carbon adsorption screen 22 are fixedly provided inside the annular seat 19 from top to bottom in sequence, and a sealing cover 23 is threadedly provided at the bottom end of the filter box 10, and two limiting rods 24 are fixedly provided inside the sealing cover 23, and the two limiting rods 24 are both provided corresponding to the annular seat 19;

[0024] The exhaust gas can be filtered by the coordinated arrangement of the first filter screen 20, the second filter screen 21 and the activated carbon adsorption screen 22, thereby filtering out solid particles in the exhaust gas. The two limiting rods 24 can limit the annular seat 19, thereby ensuring the stable operation of the filter assembly.

[0025] When in use, the feeding end of the outer frame dismantling machine 1 is provided with a first conveyor 2, an exhaust port 7 is provided at the top of the calcining furnace 6, an air guide pipe 8 is fixedly connected to the middle of the exhaust port 7, and one end of the air guide pipe 8 away from the exhaust port 7 is connected to the top of the filter box 10, one side of the manifold 14 is fixedly connected to an exhaust pipe 15, and one end of the exhaust pipe 15 away from the manifold 14 extends to the inside of the purification box 16 where a one-way valve 17 is fixedly provided, and the purification component 18 includes a first annular pipe 181 and a second annular pipe 182, and a plurality of branch pipes 183 are fixedly connected between the first annular pipe 181 and the second annular pipe 182, and the bottom ends of the first annular pipe 181, the second annular pipe 182 and the plurality of branch pipes 183 are fixedly connected to a spray head 184;

[0026] The waste gas after heat exchange is introduced into the purification box 16 through the exhaust pipe 15. The first annular pipe 181, the second annular pipe 182 and several branch pipes 183 are arranged to spray the purification liquid in all directions in the purification box 16. The waste gas is introduced into the filter box 10 through the air guide pipe 8, and the photovoltaic panels to be disassembled are conveyed to the outer frame disassembly machine 1 through the first conveyor 2.

[0027] When the embodiment of the present application is in use: the photovoltaic panel to be disassembled is conveyed to the outer frame disassembly machine 1 through the first conveyor 2 to disassemble the outer frame, and then conveyed to the power box disassembly machine 4 through the second conveyor 3 to remove the power box of the photovoltaic panel, and then the photovoltaic panel is conveyed to the calcining furnace 6 through the third conveyor 5 for calcination treatment, and then the EVA film is peeled off. During the calcination process, the exhaust gas is introduced into the filter box 10 through the air duct 8, and the exhaust gas can be filtered through the first filter screen 20, the second filter screen 21 and the activated carbon adsorption net 22, so as to filter out the solid particles in the exhaust gas, and then the filtered exhaust gas It is introduced into several heat exchange tubes 12, and then the air in the preheating box 9 is heat exchanged, so as to increase the temperature in the preheating box 9, and can preheat the photovoltaic panels to improve the calcination efficiency. It can also realize the waste heat recovery of the exhaust gas to avoid heat waste, and then the exhaust gas after heat exchange is introduced into the purification box 16 through the exhaust pipe 15, and the purification liquid is introduced into the first annular tube 181, the second annular tube 182 and several branch pipes 183 at the same time, and the purification liquid is sprayed out in the form of spray through several spray heads 184, so as to realize the purification of the exhaust gas and avoid the direct discharge of the exhaust gas to pollute the environment.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A photovoltaic panel resource utilization system suitable for construction sites, comprising an outer frame dismantling machine (1), characterized in that: A second conveyor (3) is fixedly provided at the discharge end of the outer frame disassembly machine (1); an end of the second conveyor (3) away from the outer frame disassembly machine (1) is fixedly connected to a power box disassembly machine (4); a third conveyor (5) is fixedly provided at the discharge end of the power box disassembly machine (4); an end of the third conveyor (5) away from the power box disassembly machine (4) is provided with a calcining furnace (6); a preheating box (9) is fixedly provided at the connection between the third conveyor (5) and the calcining furnace (6); a top of the inner side of the preheating box (9) is provided with a preheating box (9); A plurality of evenly distributed heat exchange tubes (12) are fixedly installed on the part, and the two ends of the plurality of heat exchange tubes (12) are respectively fixedly connected to a shunt tube (13) and a collecting tube (14). A purification box (16) is fixedly arranged on one side of the preheating box (9), and a purification assembly (18) is arranged on the top of the inner side of the purification box (16). A conduit (11) is fixedly connected to one side of the shunt tube (13), and an end of the conduit (11) away from the shunt tube (13) extends to the outside and is fixedly connected to a filter box (10).

2. A photovoltaic panel resource utilization system suitable for construction sites according to claim 1, characterized in that: An annular seat (19) is slidably arranged at the bottom of the inner side of the filter box (10), and a first filter screen (20), a second filter screen (21) and an activated carbon adsorption screen (22) are fixedly arranged in sequence from top to bottom inside the annular seat (19).

3. A photovoltaic panel resource utilization system suitable for construction sites according to claim 2, characterized in that: The bottom end of the filter box (10) is threadedly provided with a sealing cover (23), and two limiting rods (24) are fixedly provided on the inner side of the sealing cover (23), and the two limiting rods (24) are both arranged corresponding to the annular seat (19).

4. The photovoltaic panel resource utilization system suitable for construction sites according to claim 1, characterized in that: One side of the collecting pipe (14) is fixedly connected to an exhaust pipe (15), and one end of the exhaust pipe (15) away from the collecting pipe (14) extends to the interior of the purification box (16) and is fixedly provided with a one-way valve (17).

5. The system for utilizing photovoltaic panels at construction sites according to claim 1 is characterized in that: The purification component (18) comprises a first annular tube (181) and a second annular tube (182); a plurality of branch tubes (183) are fixedly connected between the first annular tube (181) and the second annular tube (182); and a spray head (184) is fixedly connected to the bottom end of the first annular tube (181), the bottom end of the second annular tube (182) and the bottom ends of the plurality of branch tubes (183).

6. The photovoltaic panel resource utilization system suitable for construction sites according to claim 1, characterized in that: An exhaust port (7) is provided at the top of the calcining furnace (6), and an air guide pipe (8) is fixedly connected to the middle of the exhaust port (7), and one end of the air guide pipe (8) away from the exhaust port (7) is connected to the top of the filter box (10).

7. The photovoltaic panel resource utilization system suitable for construction sites according to claim 1, characterized in that: A first conveyor (2) is provided at the feeding end of the outer frame disassembling machine (1).

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